Clark County, Illinois has 55 churches in the Churches List directory, 2 of them verified and 11 with a published website. The 2020 US Religion Census counted 48 congregations and 10,657 adherents across 14 religious bodies in the county. That is 689 adherents per 1,000 residents of its 15,463 people.
| Religious body | Congregations | Adherents | Per 1,000 pop. |
|---|---|---|---|
| Southern Baptist Convention | 9 | 3,313 | 214.3 |
| Non-denominational Christian Churches | 5 | 2,000 | 129.3 |
| United Methodist Church | 12 | 1,859 | 120.2 |
| Christian Churches and Churches of Christ | 4 | 952 | 61.6 |
| Catholic Church | 2 | 790 | 51.1 |
| Church of the Nazarene | 3 | 518 | 33.5 |
| Churches of God, General Conference | 3 | 350 | 22.6 |
| Christian Church (Disciples of Christ) | 1 | 266 | 17.2 |
| Assemblies of God | 1 | 170 | 11.0 |
| Cumberland Presbyterian | 2 | 134 | 8.7 |
| Churches of Christ | 2 | 114 | 7.4 |
| Vineyard USA | 1 | 100 | 6.5 |
Source: 2020 US Religion Census (Association of Statisticians of American Religious Bodies). Per-1,000 rates divide reported adherents by the county's 2020 Census population (15,463). Largest 12 bodies by adherents shown.
Service Times Sunday School 9:30 a.m. Sun. Morn. Worship 10:30 a.m. Sun. Eve. Worship 6:00 p.m. Midweek Services Wed. 7:00 p.m.
The Martinsville Bible Church is a non-demoninational church. The purpose of this church is to preach and teach the Word of God, to worship God, to observe the ordinances of baptis...
Directory traditions here: Methodist (12) · Baptist Churches (10) · Christian (7) · Church of the Nazarene (5) · United Methodist (5) · Non-Denominational (4) · Catholic (2) · Wesleyan (2) · Church of Christ (2) · Presbyterian (2)
Church registers are among the richest genealogical sources: baptisms, marriages, and burials often predate civil records. The FamilySearch catalog holds microfilmed church records for many Illinois counties, filed by denomination and parish name: search Clark County church records on FamilySearch (free account). Cross-reference with the historic-register churches above and the cemeteries listed on each church's page.
FEMA has issued 10 disaster declarations covering Clark County since records began in 1953, most recently in 2023. The most frequent cause: flood (3 declarations). Churches have historically served as shelters and relief hubs in these events; congregations can register preparedness plans with their county emergency management agency.
Source: OpenFEMA Disaster Declarations Summaries.
Directory listings are mapped to Clark County through the US Census Bureau's 2020 ZCTA-to-county relationship file: each ZIP Code Tabulation Area is assigned to the county holding the largest share of its land area, so a small number of churches in ZIP codes that straddle county lines may be attributed to a neighboring county. Congregation and adherent counts come from the 2020 US Religion Census and are reported by the religious bodies themselves. Population is the county's April 2020 decennial-census base from the US Census Bureau's population-estimates program; per-1,000 adherence rates divide reported adherents by that figure. Corrections to any listing go through the corrections page.